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- www.eraxgylab.com Helena, MT 877- 472 -0711 • Billings, W 800 - 735 -4489 • Casper, WY $88-235-0515 <br />Aatry rf%:aeaN�aSabPC' idiY Gillette, WY 866 -686 -7175 • Rapid City, SO 886 -672 -1225 • College Station, TX 888- 690 -2218 <br />QA/QC Summary Report <br />Prepared by Casper, WY Branch <br />Client: Cotter Corporation Report Date: 05/29/13 <br />Project: Schwartz -SW 5/4/13 S26868 S26869 Work Order: C13050235 <br />Analyte Count Result Units RL 0/6REC Low Limit High Limit RPD RPDLimit Qual <br />Method: E903.0 Batch: RA226 -6631 <br />Sample ID: C13050190- 003GMS Sample Matrix Spike Run: BERTHOLD 770- 1_130509C 05/22/13 13:24 <br />Radium 226 19 pCi /L 85 70 130 <br />Sample ID: C13050190- 003GMSD Sample Matrix Spike Duplicate Run: BERTHOLD 770- 1_130509C 05/22/13 13:24 <br />Radium 226 19 pCi /L 84 70 130 0.8 21 <br />Sample ID: MB- RA226 -6631 <br />Radium 226 <br />Radium 226 precision ( ±) <br />Radium 226 MDC <br />Sample ID: LCS -RA226 -6631 <br />Radium 226 <br />3 Method Blank <br />-0.05 pCi /L <br />0.07 pCi /L <br />0.1 pCi /L <br />Laboratory Control Sample <br />11 pCi /L <br />Method: E903.0 <br />Sample ID: C13050235- 002GMS Sample Matrix Spike <br />Radium 226 16 pCNL <br />Sample ID: C13050235- 002GMSD Sample Matrix Spike Duplicate <br />Radium 226 16 pCi /L <br />Sample ID: MB- RA226 -6632 <br />Radium 226 <br />Radium 226 precision ( ±) <br />Radium 226 MDC <br />Sample ID: LCS - RA226 -6632 <br />Radium 226 <br />3 Method Blank <br />0.04 pCi /L <br />0.08 pCi /L <br />0.1 pCi /L <br />Laboratory Control Sample <br />9.3 pCi /L <br />Qualifiers: <br />RL - Analyte reporting limit. <br />MDC - Minimum detectable concentration <br />Run: BERTHOLD 770- 1_130509C <br />Run: BERTHOLD 770- 1_130509C <br />98 80 120 <br />Run: BERTHOLD 770- 2_130509A <br />72 70 130 <br />05/22/13 15:02 <br />U <br />05/22/13 15:02 <br />Batch: RA226 -6632 <br />05/14/13 07:45 <br />Run: BERTHOLD 770- 2_130509A 05/14/13 07:45 <br />71 70 130 1.4 22.8 <br />Run: BERTHOLD 770- 2_130509A 05/14/13 10:55 <br />U <br />Run. BERTHOLD 770- 2_130509A 05/14/13 10:55 <br />82 80 120 <br />ND - Not detected at the reporting limit. <br />U - Not detected at minimum detectable concentration <br />Page 24 of 29 <br />